Listen up! There's a 20% saving on Sennheiser's superb open-back headphones

The Sennheiser HD 660S2 open-back headphones have dropped to £389 at Peter Tyson – a substantial £110 discount from their usual £499 asking price. For the money, the HD 660S2 offer an exceptionally smooth and easy listening experience that handles any genre with aplomb. However, it's worth noting that the HD 660S2 do struggle somewhat with bass-heavy tracks that demand tight, controlled dynamics. Despite this limitation, the HD 660S2 earned a four-star rating for sound quality, with perfect five-star scores for both build and comfort. MORERead our Sennheiser HD 660S2 reviewOur pick of the best wireless headphones you can buy right nowAnd check out the best on-ear headphones: our expert pick of wired and wireless pairs